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US 8,136,733 B1Granted
VCSEL barcode scanner
AssigneeMarson Technology Co., Ltd.
InventorHo-Yeh Yu
Life of this patent
Estimating the term…
Abstract
A vertical cavity surface emitting laser (VCSEL) barcode scanner uses a VCSEL light source module as a required light source for scanning or reading a barcode. Since a vertical cavity features extremely small thickness, capability of generating a longitudinal single-mode, low current, low power consumption, and high stability, components of the scanner can be miniaturized, thereby reducing the manufacturing cost and assembly difficulty and improving the practicability of the product.
Claims11
A vertical cavity surface emitting laser (VCSEL) barcode scanner for scanning a barcode, comprising:
- a circuit substrate, arranged with a circuit;
- a VCSEL module, assembled on the circuit substrate, for generating a laser light source, wherein the laser light source is projected on the barcode to produce a reflected light;
- a reflected light path, formed in a space above a surface of the circuit substrate, so that the reflected light passes through the reflected light path, the VCSEL module being in a same plane as the reflected light path, which plane is parallel to the circuit substrate;
- and
- a sensor, assembled on the circuit substrate, for receiving the reflected light.
2 more elements
Dependencies are inferred from the claim text.